Pipe connection.



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No. 'reaeea` Patented September 8, 1903.

PATENT OFFICE.

i ALONZO W. CRAM, OF HAVERHILL, MASSACHUSETTS.

PIPE CONNECTION.

SPECIECATION forming part of Letters Patent No. 738,662, dated September8, 1903.

Y Application filed January 28, 1902. Serial No. 91,617. (No model.)

. zen of the United States, residing at Haver- IVs hill, in the countyof Essex and State of Massachusetts, have invented new and useful`Improvements in Pipe Connections, of which the following is aspecification.

My invention relates to improvements in pipe connections, and pertainsto a connection especially intended for use in connection with pipesextending through roofs; and' it consists in certain details ofconstruction,

which will befully described hereinafter and particularly pointed out inthe claims.

The accompanying drawingindicatesa vertical section of a roof with apipe extending therethrough and showing my invention applied thereto.

Referring now to the drawing, l indicates the pipe passing throughtheroof, and 3 a socket surrounding the said pipe and having its lower endformed on an incline, as illus# trated, to `rest against the outersurface of.

the roof. This socket 3 tapers outwardly and is provided with serrations4, constructed and adapted to hold a calked packing 5, placed therein,and to prevent it from becomingdis- `lodged or loose and `at the sametime to hold the packing to its `forced position when calking or forcingthe same into the space between the socket and the pipe passingtherethrough. As here shown, and preferably, I

desire to form the serrations 4 with inwardlyextending shoulders orabutments 6, like unto saw-teeth, and by which detail of constructionthe calking is more securely held in its calked position, as will bereadily understood. Generally oakumis placedat the'inner end of thecalked joint, as shown at 5, and then lead calking 7 is placed in theouter portion thereof and forced therein` by the usual calkingoperation. When calking the same, the blows or effect is felt at theinner end of the socket, thus making a secure and tight joint, andthecalking is "held against rebounding by the serrations and is heldfrom becoming loose or displaced after the joint is completed. Y

The inclined lower end of the socket or collar 3 rests upon aflashing-plate which has a ange 8 [turned up within the socket, asclearly illustrated.

Having thus described my invention, what I claim,and desire to secure byLetters Patent, is-

1. A pipe connection comprising a tapering socket having its lower endcut at an angle,

n serrations in the inside of said socket, a flash- `turned end restingin the serrations, and a calking betweenthe said upper end andthepiping, whereby the upper end of said liashing is made to conform withthe serrations substantially as described;

3. A pipe connection comprising a tapering collar surrounding a pipeextending through a roof, said tapered collar having its lower end aredoutward and downward, serrations on the inner side of said taperedportion, a flashing adapted to rest upon a roof and having anupwardly-extending flange, the upper portion of said fiange restingagainst the serrations in the collar, and a calking between the pipe andsaid upper portion of the ilange,

whereby when the calking is tightly driven in the flange conforms to theshape of the serrations, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

ALONZO W. CRAM.

Witnesses: n

FRED. L. CRAM, LovETT W. RING.

